Resolve "Interface: add a "Continue" button on each page"

Closes #59

inst/interface/global.R

@@ -9,6 +9,7 @@ library(shinydashboard)
 library(rhandsontable)
 library(shinyFiles)
 library(shinycssloaders)
+library(shinyjs)
 
 #### MAIN VARIABLES ####
 
@@ -118,4 +119,5 @@ langHelpMatrix <- c(
 )
 
 
-
+# Tab item names
+tabItemNames = c("fileTab", "unitTab", "riskTab", "weightTab", "resultTab")